Electrode



, Nov. 23,1926.

E. J. VON HENKE ELECTRODE Filed Feb. 28. 1923 Bataafse-Nov.,23,1926. 1- Y' t. -1,6o7`,111o u NITED STAT-Es "PATENT QFFVICB..

- Iv meer? onto the screw threaded portion 1,4 of the I partition 9. A nipple 19 is attached to a-,boss on the sleeve v2, byia llanged-nut 20. A flexible rub- M invention 'relates to electrodes and' particularly to water cooled electrodes for electric spot welding machines.

As heretofore constructed such electrodes 'rl were ineicient and difficult to operate, but I 'have devised such y an .electrode Awhich is efficient, easilyope'rated and in which the Water supply and discharge conduits are covered with a flexible metal armor and at the same time the` electrode is isulatedfrom the machine. l

My invention will better be understood from the following description taken in connection with the accompanyingdrawings, showing one embodiment of my invention and in which:

Figure l shows 'a side elevation of an electrode embodying my invention; Fig. 2 shows a vertical central section of the device shown in Figure 1; and

`Figure 3 is a detailed sectional view 4of an insulating coupling.

Referring to the drawings the electrode comprises a body member 1 .which is re- 85 duced atits upperfend and around which reduced portion are placed two sleeves 2 and 3. The sleeve 2 is provided with a peripheral passage 4, which communicates with an inlet passage 5. The sleeve 3is provided `80 with aperipheral passage 6 which communicates with an outlet passage 7 The body member'l is provided withyan interior chamber which extends from the up- 'per end of the electrode, 'through' the body member and into the t ip.8, which is attached ,to the body memberl.- Placed in the chamber is a removable partitionortiemember 9 which divides the chamber intol two legs 10 and 11, which Acommunicate -through the j 4 40 passage 12in thetip. The partition 9is in `Y the form ofa rod with channels, cut on' its sides and is provided at its upper end withf ascrew'threaded'.portionl an partition is placed in the chamber and a screw 15'is screwed. into place andlocks the partition in place in the chamber. The up- 'per endl ofl thebody member lv'is screw threaded andan'open ended nut 16 is screwedk .50 thereon.l This nut holds-'the sleeves 2 and 43 in p1ace., WashersV 17 are placed-between.

the nut $16 andv sleeve-2, between :sleeves 2- and 3'a11d between sleeve 3 and a shoulder on -1 v*the body ',Inembfn` 1.' The" member 18 is y lll-screwed onto the 'screw'threaded portion 13 l ofthe partition-'Q andthe:tip8 i's'ScreWedf at its lower' Vend' withV a screw threadedY portion14. The; body member, a -.chaniber therein, a removable partition therein extending substan-A ber hose 21 is fastened onthe nipple 19 by a flanged nut 22. The nut.22 also acts to fasten a flexible metallic armor v23 to the nipple 19. A similar arrangement is provided for attaching a hose to a boss on the sleeve' 3. l

At some suitable point in the armor 23 is shown in Fig. 3. This coupling comprises a member 24 of insulating 'material'to the sides of which are screwed flanged nuts 25 and 26 which hold the flexible Yarmor members 23 and 27 in'place.- It willbe noted respectively, and with the cooling chamber' inside the member 1 throughout substan tially the entire length ofthe electrode including the major portionof-the tip '8,- thus acting to efciently cool the -same and prolong the life thereof.` l f While I have shown and described one embodiment of my invention, I ydesire it to be understood that I am not limited to the particular arrangement shown; -since many changes may be made 'in-'the details thereof,

The hose is made; of insulating ma-f 'placedv an insulated coupling of the form without departing .from the Aspirit of I ny invention.

Iclairr'l: Q a' .f 1. A' water cooled electrode comprising a tially throughout the length of the cham,-

-ber, but leavmg-the parts 11i communication,

Itheother a water'outl'et passage, a peripheral' passage connecting-said inletpssage with one end of said chamber arid a peripheral. passage connecting thev outlet passagewith 4the ot erfend of saidchamber. e y

2. A v vaterV electrode a'.Y

l'lil i body member, a tie member -extending through said body member', a tip attached to said tie member, a head for said body member and means for 'supplying coolingl fluid :fastened to said body member and movable therearound.-

3. A Water cooled electrode comprising a body member, two sleeves surrounding said member 'and movable therearound, a nut screwed onto said member for holding said sleeves in place, a tie member passing` through said body member and a'head attached to one end of said tie member and a tip attached to the other end thereof, said electrode having a. passage therethrough for the circulatingiiuid.'

www@ 4. A water cooled electrode comprising a body portion with a circulating passage therethrough, two sleeves surrounding said body portion and having circulating passages therethrough, flexible hosev attached to said sleeves, a metallic armor for said hose and an insulating coupling for said armor between the electrode and Welding machine.

5. A`Water cooledelectrode comprising a body member, a member extending through said body member to provide longitudinal channels for the cooling medium, a tip for said electrode and means rotatable about the axis of the body member for supplying cooling fluid to said tip through said channel.

EDMUND J. von HENKE. 

